{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "The best 2D - QSAR model showed suitable statistical measures [ n = 18 ; s = 0 . 11 ; F = 42 . 19 ; R ( 2 ) = 0 . 90 and Q ( 2 ) = 0 . 77 ( SDEP = 0 . 15 ) ] , and according to the optimum 3D - QSAR model [ R ( 2 ) = 0 . 98 , Q ( 2 ) = 0 . 93 ( SDEP = 0 . 08 ) ] , three latent variables explained 62 % of the total variance from original data ."}
{"Chemical": []}